{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3S1Z16-IQR50-C5","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3S1Z16-IQR50-C5","canonicalUrl":"https://icboms.com/texas-instruments/LM3S1Z16-IQR50-C5","factsUrl":"https://icboms.com/api/mcp/products/LM3S1Z16-IQR50-C5","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Stellaris® ARM® Cortex®-M3S 1000 series LM3S1Z16-IQR50-C5, 32-Bit Single-Core MCU, 50MHz, 16KB Flash, 6K x 8 RAM, 64-LQFP, -40°C~85°C.","salesMarkdown":"The LM3S1Z16-IQR50-C5: It runs at 50 MHz from a single-core Cortex-M3, with 16 KB of program Flash and 6 KB of SRAM — enough for a single-loop motor controller, a sensor hub, or a protocol bridge in industrial or building-automation gear. The 50 MHz core clock is the practical ceiling for this part — the Flash prefetch buffer and single-cycle multiply-accumulate keep tight loops like PID calculations or UART bit-banging running without wait-state stutter. The 6 KB SRAM is the hard limit for stack, buffers, and DMA descriptors; a design that needs a large Ethernet or USB packet buffer will overflow here. The 8-channel 10-bit ADC samples at a rate suitable for reading potentiometers, thermistors, or current-sense resistors; it won't do audio or high-speed data acquisition. It comes in a 64-LQFP package with a 10x10 mm body and 0.5 mm pitch. That's a standard QFP footprint — no hidden thermal pad, no BGA rework challenges. A basic two-layer board with a ground plane under the MCU handles the 1.08 V to 1.32 V core supply rail without a dedicated power plane, as long as the local decoupling caps are within 5 mm of the VDD pins. The 33 I/O pins are 5 V tolerant on most ports, which simplifies level-shifting when interfacing to 5 V logic or older peripherals. The LM3S1Z16-IQR50-C5 is listed as obsolete. TI no longer manufactures it, and no last-time-buy window is open.","metaTitle":"LM3S1Z16-IQR50-C5 Stellaris ARM Cortex-M3 MCU, 50 MHz","metaDescription":"LM3S1Z16-IQR50-C5 is a 32-bit ARM Cortex-M3 MCU from the Stellaris series. 50 MHz core, 16 KB Flash, 6 KB RAM, industrial temp -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Mfr":"Texas Instruments","Speed":"50MHz","Series":"Stellaris® ARM® Cortex®-M3S 1000","Package":"Tray","RAM Size":"6K x 8","Core Size":"32-Bit Single-Core","EEPROM Size":"-","Peripherals":"Brown-out Detect/Reset, DMA, POR, PWM, WDT","Connectivity":"I²C, IrDA, LINbus, Microwire, SPI, SSI, UART/USART","Mounting Type":"Surface Mount","Number of I/O":"33","Core Processor":"ARM® Cortex®-M3","Package / Case":"64-LQFP","Product Status":"Obsolete","Data Converters":"A/D 8x10b","Oscillator Type":"Internal","lifecycle_stage":"eol_hot","Base Product Number":"LM3S1Z16","Program Memory Size":"16KB (16K x 8)","Program Memory Type":"FLASH","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"64-LQFP (10x10)","Voltage - Supply (Vcc/Vdd)":"1.08V ~ 1.32V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7f37e797a5f8ba0ff59dde74c817757e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3S1Z16-IQR50-C5/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy LM3S1Z16-IQR50-C5 and what is the price?","answer":"Submit an RFQ through this listing; our desk confirms current availability and pricing at quote time. No stock or price figures are published because the surplus market moves daily."},{"question":"What is the replacement for LM3S1Z16-IQR50-C5?","answer":"The Stellaris family has been superseded by TI's Tiva C Series and later Cortex-M4F parts, but a direct pin-compatible drop-in replacement is not confirmed. A board-level redesign is the typical path for new production. For repair work, sourcing the original LM3S1Z16-IQR50-C5 from surplus stock is the practical option."},{"question":"What are the specifications of LM3S1Z16-IQR50-C5?","answer":"32-bit ARM Cortex-M3 core at 50 MHz, 16 KB Flash, 6 KB SRAM, 33 I/Os, 8-channel 10-bit ADC, connectivity including I²C, SPI, UART, LIN, IrDA, and Microwire."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3S1Z16-IQR50-C5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3S1Z16-IQR50-C5 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}